题一道,解析,似乎C,D都可以-The MP3 player cost me almost 2000 yuan.-Well,it was crazy of you to spend so much money( )you would buy a cheapr oneA until B unless C when D because

题一道,解析,似乎C,D都可以-The MP3 player cost me almost 2000 yuan.-Well,it was crazy of you to spend so much money( )you would buy a cheapr oneA until B unless C when D because
题一道,解析,似乎C,D都可以
-The MP3 player cost me almost 2000 yuan.
-Well,it was crazy of you to spend so much money( )you would buy a cheapr one
A until B unless C when D because

题一道,解析,似乎C,D都可以-The MP3 player cost me almost 2000 yuan.-Well,it was crazy of you to spend so much money( )you would buy a cheapr oneA until B unless C when D because
A知道,B除非,C当,D因为
你看主句,it was crazy of you,你疯了!
后面陈述的是“我”讲你“疯”的原因,
这个mp3花了我将近2000元
花那么多钱,你简直疯了!（因为）你应该买一个便宜一点的